CN105972446B

CN105972446B - Light emitting diode lighting device and assembling method thereof

Info

Publication number: CN105972446B
Application number: CN201610142836.4A
Authority: CN
Inventors: 陈凯; 黄建明
Original assignee: Hangzhou Hpwinner Opto Corp
Current assignee: Hangzhou Hpwinner Opto Corp
Priority date: 2015-03-13
Filing date: 2016-03-11
Publication date: 2022-12-16
Anticipated expiration: 2036-03-11
Also published as: US20180066815A1; CN105972445B; CN105042356A; JP6414921B2; EP3270038B1; CN205535124U; CL2017002271A1; CN205402278U; MX2017011724A; CN105674077B; EP3270038A1; EP3270038A4; CN105972446A; US10337718B2; BR112017018724A2; CN105972445A; JP2018507524A; CN105674077A; WO2016146025A1; CN205402277U

Abstract

The embodiment of the disclosure provides a light emitting diode lighting device and an assembling method thereof. The light emitting diode lighting device includes: the base is provided with a mounting surface; a light emitting diode element disposed on the mounting surface of the base; a lens member provided on the mounting surface side of the base; a gasket disposed between the base and the lens member such that the light emitting diode element is located within an area surrounded by the gasket; and a holder including a first portion disposed on an opposite side of the lens member from the base and facing a portion of the lens member and a second portion extending from the first portion and connected to the base, the first portion of the holder applying a pressure to the lens member toward the base.

Description

Light emitting diode lighting device and assembling method thereof

Technical Field

The present disclosure relates to a light emitting diode lighting device and a method of assembling the same.

Background

The Light Emitting Diode (LED) lighting device has the advantages of energy conservation, long service life, good applicability, short response time, environmental protection and the like, and has good application prospect.

Since the performance of the led is very susceptible to humidity, temperature and mechanical vibration, the led lighting device is required to have good waterproof, heat dissipation and mechanical vibration resistance in order to ensure that the led can work normally within its service life.

Disclosure of Invention

An embodiment of the present disclosure provides a light emitting diode lighting device, including: the base is provided with a mounting surface; a light emitting diode element disposed on the mounting surface of the base; a lens member provided on the mounting surface side of the base; a gasket disposed between the base and the lens member such that the light emitting diode element is located within an area surrounded by the gasket; a fixture including a first portion disposed on an opposite side of the lens member from the base and facing a portion of the lens member and a second portion extending from the first portion and connected to the base, the first portion of the fixture applying a pressure to the lens member toward the base. With the gasket as a fulcrum, the first portion of the mount applies a larger absolute value of moment to the lens component on the inside of the gasket than the first portion of the mount applies on the outside of the gasket.

For example, in an led lighting device provided by an embodiment of the present disclosure, a region between the lens component and the base, which is surrounded by the gasket, forms a sealed accommodating space, and the led element is located in the accommodating space.

For example, in an led lighting device provided by an embodiment of the present disclosure, the first portion of the fixing member is a ring-shaped structure disposed to overlap with the peripheral portion of the lens member in a direction perpendicular to the mounting surface of the base.

For example, in a light emitting diode lighting device provided in an embodiment of the present disclosure, in a region where the first portion of the holder and the lens member face each other, a convex portion is provided on one of a surface of the first portion of the holder facing the lens member and a surface of the lens member facing the first portion of the holder, and a first groove is provided on the other, the convex portion being fitted into the first groove.

For example, in the led lighting device provided in an embodiment of the present disclosure, a gap is provided between the first portion of the holder and the lens member between the protrusion or the first groove and the second portion of the holder.

For example, in the led lighting device provided in an embodiment of the present disclosure, the protruding portion or the first groove is disposed inside the gasket.

For example, in an led lighting device provided in an embodiment of the present disclosure, the protrusion is disposed on the first portion of the holder, and the first groove is disposed on the lens member.

For example, in a light emitting diode lighting apparatus provided in an embodiment of the present disclosure, the second portion extends from a side of the lens member to a side of the base.

For example, in the led lighting device provided in an embodiment of the present disclosure, the second portion of the fixing member and the base form a snap structure that is engaged with each other, so that the second portion is connected to the base.

For example, in an led lighting device provided in an embodiment of the present disclosure, an inner side surface of the second portion of the fixing member facing the base and a side surface of the base facing the second portion form a mutually matching screw structure, so that the second portion is connected to the base.

For example, in an led lighting device provided by an embodiment of the present disclosure, the second portion of the fixing member is connected to the base by a fastener.

For example, in an led lighting device provided in an embodiment of the present disclosure, a second groove is provided on at least one of surfaces of the lens member and the base facing each other, and the gasket is disposed in the second groove.

For example, in a light emitting diode lighting device provided by an embodiment of the present disclosure, a distance between a surface of the lens member contacting the gasket and a surface of the base contacting the gasket is smaller than an original dimension of the gasket when the gasket is not pressed in a direction perpendicular to the mounting surface of the base.

For example, in an led lighting device provided in an embodiment of the present disclosure, a sealant is disposed between the base and the lens member at the gasket.

For example, in an led lighting device provided in an embodiment of the present disclosure, the sealant is disposed on an outer side of the gasket.

For example, in an led lighting device provided in an embodiment of the present disclosure, the led elements include at least one led element, the lens component includes at least one lens thereon, and the at least one led element and the at least one lens correspond to each other one to one.

For example, in an led lighting device provided by an embodiment of the present disclosure, at least a portion of the lens member is in contact with the base in an area surrounded by the gasket.

For example, in the light emitting diode lighting device provided by an embodiment of the present disclosure, the lens member is a transparent plate-like member provided with a lens.

For example, in an led lighting device provided in an embodiment of the present disclosure, the second portion is an integrated ring-shaped structure.

For example, in an led lighting device provided by an embodiment of the present disclosure, the second portion includes a plurality of second sub-portions that are separated.

For example, in an led lighting device provided by an embodiment of the present disclosure, the plurality of second sub-portions are uniformly distributed on the periphery of the lens component.

For example, in an led lighting device provided in an embodiment of the present disclosure, the led lighting device is an led lamp.

Embodiments of the present disclosure also provide an assembly method of a light emitting diode lighting device, including: disposing the holder with a surface of the first portion to be faced upward with the lens member and disposing the lens member on the holder; disposing the gasket on the lens member; and disposing a base provided with the light emitting diode element on the lens member and the gasket in a state where a side provided with the light emitting diode element faces the lens member, and connecting a second portion of the fixing member with the base.

For example, in the assembling method of the light emitting diode lighting device provided by the embodiment of the present disclosure, in a region where the first portion of the holder and the lens member face each other, a convex portion is provided on one of a surface of the first portion of the holder facing the lens portion and a surface of the lens member facing the first portion of the holder, and a first groove is provided on the other, and in the step of disposing the lens member on the holder, the convex portion is fitted into the first groove.

For example, in an assembly method of the led lighting device provided by an embodiment of the present disclosure, before the step of disposing the base on the lens component and the gasket, a sealant is disposed on the lens component at the sealing ring.

For example, in an assembly method of an led lighting device provided in an embodiment of the present disclosure, the sealant is disposed outside the sealing ring.

For example, in an assembly method of the led lighting device provided by an embodiment of the present disclosure, the lens member is provided with a second groove matching with the gasket, and the gasket is disposed in the second groove.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description relate only to some embodiments of the present disclosure and are not limiting to the present disclosure.

FIG. 1 is a schematic cross-sectional view of an LED lighting device;

FIG. 2a is a schematic cross-sectional view of an LED lighting device;

FIG. 2b is a schematic plan view of an LED lighting device;

FIG. 3 is a schematic partial cross-sectional view of an LED lighting device;

FIG. 4 is a schematic cross-sectional view of an LED lighting device;

FIG. 5 is a schematic cross-sectional view of an LED lighting device;

FIG. 6 is a schematic cross-sectional view of an LED lighting device; and

fig. 7 is a flow chart of an assembly method of the light emitting diode lighting device.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in the description and claims of the present disclosure are not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another.

An led lighting device 100, as shown in fig. 1, the led lighting device 100 includes at least one led element 120; a base 110 for mounting the light emitting diode element 120; a lens part 130 disposed above the LED elements 120, at least one lens 131 being disposed on the lens part 130, each lens 131 corresponding to one LED element 120, each lens 131 being used for light distribution of the LED element 120 corresponding thereto; and a gasket 140 compressed between the lens member 130 and the base 110 for sealing. The light emitting diode element 120 is located in the closed space formed by the lens part 130, the base 110 and the gasket 140. The gasket 140 needs to be compressed between the lens member 130 and the base 110, elastically deformed, and tightly attached to the surfaces of the lens member 130 and the base 110. The lens part 130 is fixed to the base 110 by a snap structure 171.

In the above structure, the lens part 130 is integrally formed with the catch structure 171. The lens member 130 is selected in consideration of the light transmission, mechanical and outdoor properties of the material, and the snap structure is generally deformed, requiring good rigidity, strength and elasticity. Therefore, if the lens part 130 is integrally formed with the catch structure 171, the variety of materials used to fabricate the lens part and the catch structure is small. In addition, the snap structure 171 is integrally formed with the lens component 130, so that a plurality of sets of snap structures and lens component integrally formed molds are required for different products, the cost of the integrally formed molds is high, and the cost of repairing the molds is also high. In addition, to ensure the sealing performance, the gasket 140 is compressed, and the middle portion of the lens member 130 is easily protruded away from the led element 120 by the snap structure 171 and the gasket 140. While the lens 131 in the lens component 130 is mainly used for light distribution of the led element 120, the deformation of the lens component 130 directly affects the accuracy of light distribution, and thus the performance of the led lighting device 100.

An embodiment of the present disclosure provides a light emitting diode lighting device, including: the base is provided with a mounting surface; a light emitting diode element disposed on the mounting surface of the base; a lens member provided on the mounting surface side of the base; a gasket disposed between the base and the lens member such that the light emitting diode element is located within an area surrounded by the gasket; and a holder including a first portion disposed on an opposite side of the lens member from the base and facing a portion of the lens member and a second portion extending from the first portion and connected to the base, the first portion of the holder applying a pressure to the lens member toward the base. In the embodiment of the present invention in which the holder is a separate component from the lens component, the holder only needs to have good elastic properties and high strength, reducing the requirements on the elastic properties and strength properties of the lens component. Thus, the range of materials from which lens features can be made is increased. In addition, the fixing piece and the lens component are separated parts, so that the fixing piece and the lens component can be formed respectively, only one set of mould of the fixing piece is needed, and the moulds for manufacturing the lens component corresponding to different products are designed independently, so that the moulds for manufacturing the fixing piece and the lens component are simplified, and the costs for manufacturing the moulds and repairing the moulds are reduced.

In some embodiments of the invention, the absolute value of the moment applied by the first portion of the mount to the lens component on the inside of the gasket is greater than or equal to the absolute value of the moment applied by the first portion of the mount to the lens component on the outside of the gasket, with the gasket as a fulcrum.

At least one embodiment of the present invention provides an led lighting device and an assembly method thereof, which can avoid the problem that the middle of the lens member is easy to bulge.

First embodiment

Fig. 2a and 2b are schematic views illustrating a light emitting diode lighting device according to an embodiment of the present invention, fig. 2b is a plan view, and fig. 2a is a sectional view taken along line AA' in fig. 2 b. As shown in fig. 2a and 2b, the led lighting device 200 includes: a base 210 having a mounting surface 211; a light emitting diode element 220 disposed on the mounting surface 211 of the base 210; a lens member 230 disposed on the mount surface 211 side of the base 210; a gasket 240 disposed between the base 210 and the lens part 230 such that the light emitting diode element 220 is located within an area surrounded by the gasket 240; the holder 250, including a first portion 251 disposed at an opposite side of the lens member 230 from the base 210 and facing a portion of the lens member 230 and a second portion 252 extending from the first portion 251 and connected to the base 210, the first portion 251 of the holder 250 applies a pressure to the lens member 230 toward the base 210.

For example, with the gasket 240 as a fulcrum, the absolute value of the moment applied to the lens part 230 by the first portion 251 of the holder 250 on the inner side of the gasket 240 is greater than or equal to the absolute value of the moment applied to the lens part 230 by the first portion 251 of the holder 250 on the outer side of the gasket 240.

As shown in fig. 2a and 2b, the fixture 250 presses the lens part 230 against the base 210, and a hermetic accommodation space is formed between the lens part 230 and the base 210 in a region surrounded by the gasket 240 by means of the sealing action of the gasket. That is, the lens member, the base, and the gasket enclose the accommodation space. The led element 220 is located in the accommodating space. In the embodiment according to the present invention, the fixing member 250 is divided into the first portion 251 and the second portion 252, which are merely for convenience of description. First portion 251 and second portion 252 of fixing member 250 may be fixedly coupled together or may be integrally formed, which is not particularly limited according to the embodiment of the present invention. Since the first portion 251 described above is a portion facing the side of the lens part 230 opposite to the base, the first portion 251 is a portion directly applying pressure to the lens part 230.

In the above-described structure shown in fig. 1, since the lens member and the portion for fixing to the base are of an integral structure, the gasket 140 forms a fulcrum during the fixing such that the central portion of the lens member (the portion inside the gasket) forms a projection, thereby affecting the optical path matching between the light emitting diode element and the lens corresponding thereto. In the embodiment according to the present invention, the lens part 230 and the holder 250 are structures separated from each other. Regarding the lens member 230 and the gasket 240 as a lever, the first portion 251 of the holder 250 applies a pressing force to the lens member 230 toward the base 210, and the absolute value of the moment applied to the lens member 230 by the first portion 251 of the holder 250 on the inner side of the gasket 240 is greater than or equal to the absolute value of the moment applied to the lens member 230 by the first portion 251 of the holder 250 on the outer side of the gasket 240, using the gasket 240 as a fulcrum. In such a moment arrangement, the portion of the lens member 230 located inside the gasket tends to be pressed toward the base, and thus, the middle of the lens member 230 is prevented from being protruded away from the light emitting diode element 220, and thus, the relative position of the lens member 230 and the light emitting diode element 220 is prevented from being changed, ensuring good light distribution performance of the lens member 230 and the light emitting diode element 220.

For the absolute value of the moment applied by the first portion 251 of the holder 250 to the lens member 230 on the inner side of the gasket 240 to be greater than or equal to the absolute value of the moment applied by the first portion 251 of the holder 250 to the lens member 230 on the outer side of the gasket 240, it may be that the first portion 251 is in contact with the lens member 230 only on the inner side of the gasket or just above the gasket, that is, a downward pressing force is applied to the lens member 230 only on the inner side of the gasket (it can be considered that the moment applied by the first portion 251 on the outer side of the gasket is 0 at this time); it is also possible that the first portion 251 contacts the lens member 230 on both the outer side and the inner side of the gasket, but the applied torque satisfies the above-described relationship, which is not particularly limited according to an embodiment of the present invention. From another perspective, if the force applied by the first portion 251 to the lens member 230 is synthesized as a force, the resultant force acts at a point inside or directly above the gasket, which can ensure that the central portion of the lens member 230 is not upwardly protruded by the pressing of the fixing member 250.

Fig. 3 is a schematic partial cross-sectional view taken perpendicular to the extension of the gasket, showing only a partial cross-section in the vicinity of the gasket. As can be seen in fig. 3, the first portion is only capable of exerting downward (toward the base) pressure on the lens component, both on the outside and on the inside of the gasket. The pressure of the first portion 251 of the holder 250 against the lens member 230 may include a force F1 outside the gasket 240 and a force F2 inside the gasket. With the washer 240 as a fulcrum, the force F1 and the force F2 form two moments. These two moments may cause lens component 230 to have different tendencies to rotate about gasket 240. If the absolute value of the moment created by the force F1 is greater than the absolute value of the moment created by the force F2, the portion of the lens member 230 outside the gasket is pressed down and the middle portion of the lens member 230 is convex upward. If the absolute value of the moment created by the force F2 is greater than or equal to the absolute value of the moment created by F2, the middle portion of the lens member 230 is not bulged, ensuring the fitting relationship between the lens in the lens member and the light emitting diode element. Only two simple forces F1 and F2 are illustrated in fig. 3, but F1 and F2 may be a plurality of forces applied to the outside and the inside of the gasket, respectively, in a distributed manner. In some embodiments, F1 may also be 0, and at this time, it may be considered that the partial moment of the first portion 251 applied to the outer side of the lens member 230 is 0.

In some embodiments according to the present invention, the holder 250 satisfies the above-described moment relationship with respect to the lens part 230 at each cross section perpendicular to the gasket 240. This can further ensure that the middle of the lens member 230 does not protrude upward.

In the present specification, "directly above the gasket" means overlapping the position of the gasket in a direction perpendicular to the mounting surface of the base and on the side of the lens member 230 opposite the base. In this specification, the inner side and the outer side of the gasket are directions within a plane parallel to the mounting surface of the base 210, and a region surrounded by the gasket may be referred to as the inner side of the gasket, and a region other than the gasket may be referred to as the outer side of the gasket.

For example, the led element 220 is, for example, a separately packaged led bead, an integrated led light source, or an led chip.

For example, the base 210 is a lamp housing or a heat sink, and the mounting surface 211 of the base 210 is used for mounting the light emitting diode element 220. The led elements 220 may be directly disposed on the base 210, or disposed on a PCB (Printed Circuit Board) to form a PCBA (Printed Circuit Board Assembly) with the led elements disposed thereon, and then the Assembly Circuit Board is disposed on the base 210. The base 210 is not particularly limited according to an embodiment of the present invention, and may be, for example, a rigid substrate on which the light emitting diode element 220 is directly disposed, or a stacked structure including a PCB board and a heat sink structure.

For example, the lens part 230 may be provided with a rib or the lens part 230 may be partially thickened to prevent the lens part 230 from being deformed. The material of the lens part 230 is, for example, PC (polycarbonate) or PMMA (polymethyl methacrylate, also called acryl).

For example, the fixing member 250 may be a gland, a heat sink, or a lamp housing, for example. The fixing member 250 may be made of a light-transmitting material or a metal material that is easy to manufacture, low in cost, and good in mechanical properties, for example.

For example, the holder 250 is a separate component from the lens component 230. If the holder 250 is integrally formed with the lens part 230, they need to be elastically deformed when being engaged with the base 210, and thus need a good elastic property, and also need a high strength, so that the kinds of materials used for manufacturing the holder 250 and the lens part 230 are small. If the holder 250 is a separate component from the lens part 230, only the holder 250 needs to have superior elastic properties and superior strength, reducing the requirements for elastic and strength properties of the lens part 230. Therefore, the range of materials for manufacturing the lens part 230 is increased, so that different materials can be used for manufacturing the lens part 230 according to different performance requirements, for example, glass with higher flame retardancy and poorer elastic performance can be used when the flame retardancy requirement is higher, for example, organic glass material or inorganic glass material with higher strength and poorer elastic performance can be used when the strength requirement is higher, for example, PMMA (acrylic) material with higher transmittance and poorer strength can be used when the light transmittance requirement is higher.

For example, if the fixing member 250 is integrally formed with the lens member 230, a plurality of sets of fixing members 250 are required for different products to be integrally formed with the lens member 230, and the cost of integrally forming the fixing member 250 with the lens member 230 is high and the cost of repairing the mold is also high. If the fixing member 250 and the lens part 230 are separate parts, the fixing member 250 and the lens part 230 can be separately molded, and only one set of molds for the fixing member 250 is required, and the molds for manufacturing the lens part 230 corresponding to different products can be separately designed, thereby simplifying the molds for manufacturing the fixing member 250 and the lens part 230 and reducing the costs for manufacturing the molds and repairing the molds.

For example, the gasket 240 has a closed ring shape with a cross section having other shapes such as circular, T-shaped, or 7-shaped, and the material of the gasket 240 is, for example, silicone, rubber, or other elastic materials.

For example, the gasket 240 has an interference fit with both the lens member 230 and the base 210, such that the gasket 240 is deformed and compressed between the lens member 230 and the base 210. That is, the distance between the surface of the lens member 230 at the contact position with the gasket 240 and the surface of the base 210 at the contact position with the gasket 240 is smaller than the original size of the gasket 240 when not compressed in the direction perpendicular to the mounting surface 211 of the base 210. That is, the gasket 240 is compressed between the lens part 230 and the base 210, elastically deformed, and closely adhered to the surfaces of the lens part 230 and the base 210. The formation of the sealed accommodating space is facilitated by such interference fit.

For example, in the light emitting diode lighting apparatus 200 provided in an embodiment of the present disclosure, the first portion 251 of the holder 250 is a ring-shaped structure disposed opposite to the peripheral portion of the lens member 230, that is, the first portion 251 of the holder 250 is disposed to overlap the peripheral portion of the lens member in a direction perpendicular to the mounting surface of the base. Such a structure is advantageous for the lens member 230 to be stressed uniformly, and for ensuring good sealing performance of the accommodating space.

For example, in the light emitting diode lighting device 200 provided in an embodiment of the present disclosure, in a region where the first portion 251 of the holder 250 and the lens member 230 face each other, a protrusion 261 is provided on one of a surface of the first portion 251 of the holder 250 facing the lens member 230 and a surface of the lens member 230 facing the first portion 251 of the holder 250, and a first groove 262 is provided on the other, the protrusion 261 being embedded in the first groove 262. For example, in the embodiment shown in fig. 2a, a boss 261 facing the lens member is provided on the holder 250, and a groove 262 to be fitted with the boss 261 is provided on the lens member 230. The protruding portion 261 is fitted into the groove 262.

For example, the protrusion 261 and the first groove 262 are disposed inside the gasket 240 or directly above the gasket 240. In the embodiment in which the projection 261 and the first recess 262 are provided, stabilization of the mutual positional relationship between the holder 250 and the lens member 230 is facilitated due to the provision of the projection 261 and the first recess 262.

For example, the protruding portion 261 may be a ring structure, or the number of the protruding portions 261 is plural, and the plural protruding portions 261 are arranged at intervals and arranged along the extending direction of the ring structure of the fixing member; the first groove 262 is an annular groove that fits the protruding portion 261, or a plurality of grooves that are provided at intervals corresponding to the plurality of protruding portions 261. For example, the ring-shaped structure of the protrusion 261 and the ring-shaped groove 262 facilitates assembly.

For example, in the light emitting diode lighting device 200 provided in an embodiment of the present disclosure, a gap is provided between the first portion 251 of the fixing member 250 and the lens member 230 between the protrusion 261 or the first groove 262 and the second portion 252 of the fixing member 250, as shown in fig. 2 a. As described above, by properly setting the height of the projection and the depth of the first groove, it is possible to make the position of the projection 261 and the first groove 262 become the point of effort between the holder 250 and the lens member 230, and having a clearance between the first portion 251 of the holder 250 and the lens member 230 will make the portion of the holder 250 not exert a force on the lens member 230, and therefore, such an arrangement makes it possible to more easily control the state of the force exerted on the lens member 230, and to more easily achieve the above-mentioned moment relationship to avoid the projection of the lens member inside the gasket, thereby avoiding the projection of the lens member 230 in a direction away from the light emitting diode element 220, and ensuring good light distribution performance of the lens member 230 and the light emitting diode element 220.

For example, in the light emitting diode lighting device 200 provided by an embodiment of the present disclosure, the protrusion 261 is disposed on the first portion 251 of the holder 250, and the first recess 262 is disposed on the lens member 230.

For example, it is also possible that the first recess 262 is provided on the first portion 251 of the holder 250 and the protrusion 261 is provided on the lens member 230.

For example, the protrusion 261 is, for example, a stepped protrusion, and the first groove 262 is, for example, a stepped groove that mates with the stepped protrusion.

For example, in the light emitting diode lighting apparatus 200 provided by an embodiment of the present disclosure, the second portion 252 extends from the side of the lens member 230 to the side of the base 210, as shown in fig. 2.

For example, in the led lighting device 200 provided in an embodiment of the present disclosure, the second portion 252 of the fixing member 250 and the base 210 form a snap structure 271 that is engaged with each other, so that the second portion 252 is connected to the base 210. The specific form of the snap structure 271 according to the embodiment of the present invention is not particularly limited, for example, as shown in fig. 2, the end of the second portion 252 has a protrusion protruding toward the inner side, and the protrusion can be mutually engaged with a concave structure on the base. Any other suitable snap-fit arrangement may also be employed in accordance with embodiments of the present invention.

For example, second portion 251 of mount 250 can be adjusted such that the portions of second portion 251 distributed about the periphery of the illumination device are of uniform size, thereby enabling mount 250 to apply uniform forces to the lens component at each portion. In addition, the snap structure 271 can prevent the gasket 240 from generating a small gap between the gasket 240 and the lens member 230 and the base 210 due to the uneven force applied to the gasket 240 everywhere, thereby preventing moisture from entering into the sealed space formed by the lens member 230, the base 210 and the gasket 240, and affecting the performance and the service life of the led element 220.

For example, in the light emitting diode lighting apparatus 200 provided in an embodiment of the present disclosure, a second groove 280 is provided on at least one of surfaces of the lens member 230 and the base 210 facing each other, and the gasket 240 is disposed in the second groove 280.

For example, in the led lighting device 200 provided in an embodiment of the present disclosure, a sealant is disposed between the base 210 and the lens part 230 at the gasket 240. The double seal of the combination of the sealing glue and the gasket 240 may further improve the sealing performance.

For example, in the led lighting device 200 provided in an embodiment of the present disclosure, the sealant is disposed on the outer side of the gasket 240. The sealant is disposed outside the gasket 240 to prevent the sealant from contaminating the led device 220, and to achieve a better sealing effect.

For example, providing a second recess 280 that mates with gasket 240 can further improve sealing performance and facilitate application of the sealing compound, preventing the sealing compound from spilling and contaminating the lens member 230 or the LED element 220.

For example, the second groove 280 is, for example, a stepped groove, and the gasket 240 has, for example, a stepped section to be fitted with the stepped second groove.

For example, in the led lighting apparatus 200 provided in an embodiment of the present disclosure, the led elements 220 include at least one led element 220, the lens component 230 includes at least one lens 231 thereon, and the at least one led element 220 and the at least one lens 231 correspond to each other in a one-to-one manner.

For example, each lens 231 is used for light distribution with the corresponding light emitting diode element 220.

For example, in the light emitting diode lighting apparatus 200 provided in an embodiment of the present disclosure, at least a portion of the lens member 230 is in contact with the base 210 within an area surrounded by the gasket 240.

For example, the lens component 230 can be surface-mounted to the base 210 (e.g., a substantial portion of the bottom surface of the lens component 230 other than the lens location is mounted to the base) or point-mounted. When the two surfaces are attached to each other, the deformation of the lens component 230 is almost negligible, but the manufacturing precision requirement is high in mass production, and the manufacturing cost is increased. When the two are joined, the lens member 230 is easily deformed locally, but the requirement for manufacturing accuracy is lowered, and the manufacturing cost is lowered. In actual production, a surface bonding or point bonding mode can be adopted according to specific requirements of products, and a mode of combining local surface bonding and point bonding can also be adopted.

For example, in the light emitting diode lighting device 200 provided by an embodiment of the present disclosure, the lens member 230 is a transparent plate-shaped member provided with the lens 231.

The integral annular structure of the second portion 252 can make the gasket 240 uniformly stressed, and achieve a better sealing effect.

In the embodiment shown in fig. 2b, second portion 252 of fixture 250 comprises a separate plurality of second sub-portions. These second sub-portions are disposed at the periphery of the lens component 230 or the first portion 251, as shown in fig. 2 b. When the second portion 252 is a plurality of second sub-portions, the weight of the product can be reduced, and the material and cost can be saved.

For example, in the led lighting device 200 provided in an embodiment of the present disclosure, the plurality of second sub-portions are uniformly distributed on the periphery of the lens member 230. The uniform distribution of the plurality of second sub-portions can make the stress of the gasket 240 uniform, and achieve a better sealing effect.

However, embodiments according to the present invention are not limited to the fixture 250 shown in FIG. 2b being in a separate form. For example, in the led lighting device 200 provided in an embodiment of the present disclosure, the second portion 252 of the fixing member 250 may be an integral ring structure. Alternatively, second portion 252 of fixture 250 may include a ring structure connected to first portion 251 and a plurality of connection portions extending from the ring structure for connection to a base. The plurality of connection portions may be uniformly distributed on the periphery of the lens part 230.

Whether the second portion of the fixing member 250 includes a separate plurality of opening structures or an integrated ring structure (snap structure), when the fixing member 250 is coupled to the base 210, simultaneous coupling can be achieved at various positions on the periphery of the base, so that the fixing member 250 can apply uniform pressure to the periphery of the lens member 230, preventing the gasket from being deformed unevenly due to uneven pressure to cause a slight gap between the gasket and the lens member and the base.

For example, in the led lighting device 200 provided in an embodiment of the present disclosure, the led lighting device is an led module or an led lamp. When the led lighting device is an led module, it can be mounted in a lamp housing to form an led lamp.

In the schematic plan view shown in fig. 2b, the lighting device according to the embodiment of the present invention is shown to have a substantially rectangular planar structure, however, the planar shape of the lighting device according to the embodiment of the present invention is not limited to a rectangle, and may be a square, a circle, an ellipse, or any other regular or irregular shape.

Second embodiment

An embodiment of the present disclosure further provides an led lighting device 200, as shown in fig. 4, an inner side surface of the second portion 252 of the fixing member 250 facing the base 210 and an outer side surface of the base 210 facing the second portion 252 form mutually matched screw structures 272, so that the second portion 252 is connected to the base 210.

For example, the planar structure of the light emitting diode lighting device is a circular structure. The connection between the fixing member 250 and the base 210 is in the form of a screw connection, which is suitable for the assembly of the lighting device having a circular structure.

For example, the thread structure 272 includes internal threads and external threads. The second part of mounting is provided with the internal thread towards the medial surface of base, and the base is provided with the external screw thread towards the side of second part, and the external screw thread is used for cooperating with the internal thread that the medial surface of second part towards the base set up.

For example, since the fixture is attached to the lens member uniformly by the thread structure 272 during the mounting process, it is possible to prevent the gasket from being applied with a non-uniform force to generate a slight gap between the sealing ring 240 and the lens member 230 and the base 210, and thus prevent moisture from entering the sealed space formed by the lens member 230, the base 210 and the gasket 240, which may affect the performance and the service life of the led element 220. Moreover, the design and manufacturing difficulty of the screw structure 272 is low, the lens component 230 can be directly positioned on the base 210, the relative position between the lens component 230 and the base 210 is not affected when the fixing member 250 and the base 210 are screwed and fixed, and good light distribution performance of the lens 231 in the lens component 230 and the LED element 220 is ensured.

Other structures of the led lighting device provided in the second embodiment are similar to those of the led lighting device provided in the first embodiment, and reference may be made to the description of the first embodiment, which is not repeated herein.

Third embodiment

For example, an embodiment of the present disclosure further provides an led lighting device 200, as shown in fig. 5 and 6, wherein the second portion 252 of the fixing member 250 is connected to the base 210 by a fastener 273.

For example, as shown in fig. 5, a fastener 273A may be provided to secure the second portion 252 of the fixture 250 and the base 210 in a direction perpendicular to the mounting surface 211.

For example, as shown in fig. 6, the fastener 273B may also secure the second portion 252 of the fixture 250 and the base 210 in a direction disposed parallel to the mounting surface 211 (i.e., the side of the base 210). In this embodiment, the second portion of the mount 250 includes a portion that extends toward the base and to the side of the base, and the fastener 273B secures the portion of the second portion that extends to the side of the base.

For example,

fasteners

273A and 273B may be screws that can be threaded into internally threaded holes in the base to be secured. However, embodiments in accordance with the invention are not so limited, and

fasteners

273A and 273B may take the form of any suitable fasteners.

For example, the second portion 252 of the fixing member 250 and the base 210 may be provided with a pre-fixing device (not shown). The pre-fixing means comprise, for example, pins and pin holes. In some embodiments, the second portion 252 of the fixing member 250 has a pin hole for passing a pin therethrough, and the base has a pin hole for inserting and fixing the pin. In the embodiment shown in FIG. 5 where the fastener 273A is disposed perpendicular to the mounting surface 211, the pin may also be disposed perpendicular to the mounting surface 211; in the embodiment of FIG. 6 where the fastener 273B is disposed parallel to the mounting surface 211, the pins may also be disposed parallel to the mounting surface 211, i.e., the pins may be disposed in reference to the fastener, but in a plane parallel to the mounting surface, the positions of the pins and the fastener may differ. Embodiments in accordance with the invention are not limited in this regard. In assembly, the lens member 230 and base 210 are compressed to deform the gasket 240, and after compression, pins are inserted over the second portion 252 of the fixture 250 and base 210 to maintain their positions, and the second portion 252 of the fixture 250 and base 210 are secured by fasteners 273B. The pins are inserted prior to being fastened by the fasteners to fix the relative positions of the fixing member 250 and the base 210, thereby ensuring that the force applied by the fixing member 250 to the lens part 230 is uniform and preventing uneven pressure caused when different fasteners are fastened separately.

For example, the fastening member 273B has little influence on the position and shape of the gasket 240 when it is fastened to the side of the base 210, and the force applied to the gasket 240 is not uniform due to the difference in the tightening force of the fastening member 273B, thereby avoiding influence on the sealing performance of the gasket 240. In addition, the fixing member 273 has a simple structure and a low cost.

Other structures of the light emitting diode lighting device provided by the third embodiment are similar to those of the light emitting diode lighting device provided by the first embodiment, and reference may be made to the description of the first embodiment, which is not repeated herein.

In the first to third embodiments, the second portion of the fixing member is connected to the base by means of the snap structure, the thread structure and the fastening member, respectively, but the embodiment according to the present invention is not limited thereto, and other connection means may be adopted.

Fourth embodiment

Embodiments of the present disclosure also provide an assembling method of a light emitting diode lighting device, as shown in fig. 7, the assembling method includes: disposing the holder with a surface of the first portion to be faced upward with the lens member and disposing the lens member on the holder; disposing a gasket on the lens member; and disposing the base provided with the light emitting diode element on the lens member and the gasket in a state where the side provided with the light emitting diode element faces the lens member, and connecting the second portion of the fixing member with the base.

For example, the method for assembling the light emitting diode lighting device provided by an embodiment of the present disclosure can avoid deformation of the gasket under the action of gravity, which affects the sealing performance.

For example, the second portion of the fixture is connected to the base, such as by a snap-fit connection, by a threaded connection, or by a fastener. These connection structures can be referred to the previous embodiments and are not described in detail. In embodiments where a snap connection is used, for example, an integral snap structure or a plurality of separate snap structures are simultaneously connected to the base during the connection process so that the force applied by the fixture to the lens component is uniform. In addition, in the embodiment of connection by the fastening member, before connecting the second portion of the fixture to the base, it may further include inserting pins into the pin holes of the second portion of the fixture and the base after compressing the base to fix the positions of the fixture, the lens member and the base relatively (a pre-fixing step), and then fixing by the fastening member. For example, a plurality of pins can be uniformly distributed on the periphery of the base, and the plurality of pins can be inserted simultaneously for fixing.

For example, in the assembling method of the light emitting diode lighting device provided by the embodiment of the present disclosure, in the region where the first portion of the holder and the lens member face each other, a projection is provided on one of a surface of the first portion of the holder facing the lens portion and a surface of the lens member facing the first portion of the holder, and a first groove is provided on the other, and in the step of disposing the lens member on the holder, the projection is fitted into the first groove.

For example, in the method for assembling the led lighting device according to an embodiment of the present disclosure, before the step of disposing the base on the lens component and the gasket, a sealant is disposed on the sealing ring on the lens component.

For example, a double seal of a combination of a sealant and a gasket may further improve the sealing performance.

For example, in an assembly method of an led lighting device provided in an embodiment of the present disclosure, a sealant is disposed outside a sealing ring.

For example, the sealant is disposed on the outside of the gasket to prevent the sealant from contaminating the led device.

For example, in an assembly method of the light emitting diode lighting device provided by an embodiment of the present disclosure, a second groove matched with a gasket is arranged on the lens component, and the gasket is arranged in the second groove.

For example, providing a second recess that mates with the gasket can further improve sealing performance, facilitate application of the sealant, and prevent the sealant from spilling over to contaminate the lens member or the LED element.

At least one embodiment of the invention provides an led lighting device and an assembly method thereof, which can avoid the problem that the middle of the lens component is easy to bulge, and ensure good light distribution performance between the lens in the lens component and the led element.

The above description is intended to be exemplary of the present disclosure, and not to limit the scope of the present disclosure, which is defined by the claims appended hereto.

The present application claims priority from chinese patent application No. CN201510110569.8 filed 3/13/2015, the disclosure of which is incorporated herein by reference in its entirety.

Claims

1. A light emitting diode illumination device comprising:

the base is provided with a mounting surface;

a light emitting diode element disposed on the mounting surface of the base;

a lens member provided on the mounting surface side of the base;

a gasket disposed between the base and the lens member such that the light emitting diode element is located within an area surrounded by the gasket;

a holder including a first portion disposed on an opposite side of the lens member from the base and facing a portion of the lens member and a second portion extending from the first portion and connected to the base, the first portion of the holder applying a pressure to the lens member toward the base,

wherein, with the gasket as a fulcrum, the absolute value of the moment that the first portion of the mount applies to the lens component on the inside of the gasket is greater than the absolute value of the moment that the first portion of the mount applies to the lens component on the outside of the gasket.

2. The light emitting diode illumination device of claim 1, wherein an area between the lens member and the base surrounded by the gasket constitutes a closed accommodation space, the light emitting diode element being located in the accommodation space.

3. The light emitting diode illumination device of claim 1, wherein the first portion of the fixture is an annular structure disposed to overlap a peripheral portion of the lens component in a direction perpendicular to the mounting surface of the base.

4. The light emitting diode illumination device according to any one of claims 1 to 3, wherein in a region where the first portion of the holder and the lens member face each other, a convex portion is provided on one of a surface of the first portion of the holder facing the lens member and a surface of the lens member facing the first portion of the holder, and a first groove is provided on the other, the convex portion being fitted into the first groove.

5. The light emitting diode illumination device of claim 4, wherein a gap is provided between the first portion of the fixture and the lens component between the boss or the first recess and the second portion of the fixture.

6. The light emitting diode illumination device of claim 5, wherein the boss or the first groove is disposed inside the gasket.

7. The light emitting diode illumination device of claim 4, wherein the boss is disposed on a first portion of the fixture and the first recess is disposed on the lens component.

8. The light emitting diode illumination device of any of claims 1-3, wherein the second portion extends from a side of the lens component to a side of the base.

9. The light emitting diode illumination device of claim 8, wherein the second portion of the fixture and the base form a snap fit structure that mates with each other such that the second portion is connected to the base.

10. The light emitting diode illumination device of claim 8, wherein an inner side of the second portion of the fixture facing the base and a side of the base facing the second portion form cooperating thread structures to couple the second portion to the base.

11. The light emitting diode illumination device of any of claims 1-3, wherein the second portion of the fixture is coupled to the base by a fastener.

12. The light emitting diode illumination device of any one of claims 1-3, wherein at least one of the surfaces of the lens member and the base facing each other is provided with a second groove, the gasket being disposed in the second groove.

13. The light emitting diode illumination device of any of claims 1-3, wherein a distance between a surface of the lens member in contact with the gasket and a surface of the base in contact with the gasket is less than an original dimension of the gasket when uncompressed in a direction perpendicular to a mounting surface of the base.

14. The light emitting diode illumination device of any of claims 1-3, wherein a sealant is disposed between the base and the lens component at the gasket.

15. The led lighting device of claim 14, wherein the sealant is disposed on an exterior side of the gasket.

16. The light emitting diode illumination device of any of claims 1-3, wherein the light emitting diode elements comprise at least one light emitting diode element, the lens component comprises at least one lens thereon, and the at least one light emitting diode element and the at least one lens correspond one-to-one.

17. The light emitting diode illumination device of any of claims 1-3, wherein at least a portion of the lens component is in contact with the base in an area surrounded by the gasket.

18. The light-emitting diode illumination device according to any one of claims 1 to 3, wherein the lens member is a transparent plate-like member provided with a lens.

19. The light emitting diode illumination device of any of claims 1-3, wherein the second portion is a unitary ring-like structure.

20. The light emitting diode illumination device of any of claims 1-3, wherein the second portion comprises a separate plurality of second sub-portions.

21. The light emitting diode illumination device of claim 20, wherein the plurality of second sub-portions are uniformly distributed about the perimeter of the lens component.

22. The light emitting diode illumination device of any of claims 1-3, wherein the light emitting diode illumination device is a light emitting diode light fixture.

23. A method of assembling the light emitting diode illumination device of claim 1, comprising:

disposing the holder with a surface of the first portion to be faced upward with the lens member and disposing the lens member on the holder;

disposing the gasket on the lens member; and

disposing a base provided with the light emitting diode element on the lens member and the gasket in a state where a side provided with the light emitting diode element faces the lens member, and connecting a second portion of the fixing member with the base.

24. The method as claimed in claim 23, wherein in a region where the first portion of the holder and the lens part face each other, a convex portion is provided on one of a surface of the first portion of the holder facing the lens part and a surface of the lens part facing the first portion of the holder, and a first groove is provided on the other,

in the step of disposing the lens member on the holder, the projection is fitted into the first groove.

25. The method of claim 23 wherein prior to the step of disposing said base over said lens member and said gasket, further comprising disposing a sealant over said lens member at said sealing ring.

26. The method of claim 25, wherein the sealant is disposed outside of the seal ring.

27. A method as in claim 23, wherein the lens component is provided with a second groove thereon mating with the gasket, the gasket being disposed in the second groove.